Change the following distribution to a ‘more than type’ distribution. Hence draw the ‘more than type’ ogive for this distribution.
Class Interval: |
20-30 | 30-40 | 40-50 | 50-60 | 60-70 | 70-80 | 80-90 |
---|---|---|---|---|---|---|---|
Frequency: | 10 | 8 | 12 | 24 | 6 | 25 | 15 |
Class Interval | Cumulative Frequency |
---|---|
More than or equal to 20 | 100 |
More than or equal to 30 | 90 |
More than or equal to 40 | 82 |
More than or equal to 50 | 70 |
More than or equal to 60 | 46 |
More than or equal to 70 | 40 |
More than or equal to 80 | 15 |
Plot the points (20,100), (30,90), (40,82), (50,70), (60,46), (70, 40) and (80,15).